METHOD FOR PREPARING PH-ADJUSTED ILLITE EXTRACT AND ILLITE EXTRACT PREPARED BY SAME METHOD

摘要

The present invention relates to a method for preparing a pH-adjusted illite extract. More specifically, the present invention relates to a method for preparing a pH-adjusted illite extract, the method comprising the steps of: pulverizing illite to prepare an illite powder; putting the illite powder and water in a sealing container, followed by pressing and heating; releasing steam through a tube connected from the sealing container while the diameter of the tube and the pressure of the released steam are controlled; and condensing the released steam to obtain an illite extract. The method for preparing an illite extract according to the present invention allows a preparation of an illite extract with a desired pH since the pH is changed depending on the time during which the steam stays in the sealing container.